The heroine Jiang He is a nurse in a tertiary hospital in the 21st century. She traveled to the Southern Dynasties and discovered that women's diseases were kept secret in that era and no doctors were willing to treat them. Because the heroine cured the gynecological disease of the imperial concubine, she was recognized as her goddaughter and became a princess. Later, the envoy from the Northern Kingdom asked the princess to marry and make a marriage proposal. The heroine wanted to go out and see the outside world, so she asked for a marriage proposal. After getting married, the heroine used her intelligence and wisdom to help the people in the North learn to farm with tools and get a better harvest, where she also gained her love.